<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<%
		int i=0;
		System.out.print(i);
	%>
	
	<%
		int x=5;
		int y=8;
	%>
	
	<%=
		x+y
	%>
	<hr>
	<%=
		x+t
	%>
	
	<%!
		int t=19;
	%>
	<hr>
	<%!
		void add(){
		
	}
	%>
	<hr>
	<%
		if(x<t){
			%>
			x是小于t的
			<%
		}
	%>
</body>
</html>